Quartetto - Four Channel Amp

Audio Solution amplifier by Roberto Tognon

QUARTETTO

Proudly handmade in Italy

We congratulate and appreciate your interest in this Extensive HI-END, hand built, Car Audio amplifier.

The amplifier you are reviewing is a realization conceived by those who love the ultimate in sounds, and music as it was recorded for playback in your 12 volt environment(s).

What is the "Quartetto" amplifier?

"Quartetto" is the natural evolution of our top of the range "Quattro".

It was created to provide similar performance at a more accessible price, while remaining faithful to the philosophy of achieving maximum sound quality.

It is the result of over 1 year of research and development to build a car amplifier with exciting performance.

Also for "Quartetto" the collaboration with Roberto Tognon was decisive.
His experience and knowledge of music do contributed to the creation and development of this project.

The "Quartetto" adopts innovative circuit solutions with top quality components specific for audio use and will allow you to enjoy your favorite music without losing any detail or nuance.

The excellent measurements and the very high reliability in very compact dimensions make the "Quartetto" the new reference for car audio amplifiers in its price range.

Product Overview:
– SANKEN audio power stage
– High current power mosfets for single pair drive
– WURTH capacitors for power stage and for power audio stage

– Gold plated PCB

– Nichicon MUSE / ELNA Cerafine audio capacitors

– CNC milled chassis
– High quality gold plated RCA connectors
– OLED display for manage settings
– Input sensitivity set by numbers or by voltage sensitivity

Technical specifications

Output power 4ch @4 ohm 4 x 125W rms
Output power 4ch @2 ohm 4 x 200W rms
Output power 2ch @4 ohm 2 x 400W rms
Frequency response @ 1W on 4 Ohm 4Hz – 150KHz (-3dB)
THD+N (20Hz – 20KHz @ 1W) < 0.01%
THD+N (1KHz @ 5W) < 0.005%
S/N ratio > 105dB
Max input signal voltage 10 Vrms (30Vpp)
Working power supply voltage 11 – 15.5 Vdc
Current draw (typical 4ch @ 4 Ohm) 15A
Current draw (max 4ch @ 4 Ohm) 40A
Remote control current 0.015 A
Standby current < 0.9 mA
Idle current (typical) 1.8A
Input impedance >20KOhm // 220pF

Display for monitoring:

Voltage IN (*1)
Chassis temperature (*2)
Channels level by number
Channels level by sensitivity
Hardware version
Firmware version
Serial number
Setup color around knob

Over temperature protection 85° (+/- 5%)

Dimensions:
Length 320mm
Width 205mm
Height 80mm

Weight 10.5822 pounds
Working temperature 0 - 50°c

*1 – Voltage read tolerance (+/-) 2,2%
*2 – Temperature read tolerance (+/-) 1,5%

N.B. The data may vary without notice due to design adjustments or aesthetic changes.

From the assembly tech team: 
-This amplifier is designed to work only at 12V DC from the car battery.
-Do not attempt to power it with AC or different voltages!
-Install the amplifier in a solid, flat and secure way that does not affect the driver's guidance or the ability for the device to become airborne.
-Do not place the device in very hot places (such as the engine compartment).
-Make sure that the installation location is not subjected to high humidity and / or splashes of water.
- Perform solid and safe connections, using only cables of adequate length, gauge and use oxygen free copper wires for power, ground and remote connections.
- It is absolutely essential to install a fuse of adequate value near of the battery.
- In the installation / removal and maintenance operations it is absolutely necessary to remove the fuse located near the battery before any connection or wires are removed to protect the safely of all individuals and electronics..
-If the device is subjected to severe shocks that could visibly damage the chassis
-Let it be viewed by a certified professional installer.
-Keep the device clean and do not obstruct normal chassis ventilation,
-Do not use aggressive detergents for cleaning.

**PLEASE refer to the owners manual for more specs, data and installation guidance for the best possible  performance in this hand built masterpiece.